22 |
|
|
23 |
C o Do easy cases first. |
C o Do easy cases first. |
24 |
DIFFERENT_MULTIPLE = .FALSE. |
DIFFERENT_MULTIPLE = .FALSE. |
25 |
IF ( freq .EQ. 0. ) RETURN |
|
26 |
IF ( ABS(val1-val2) .GT. freq ) THEN |
IF ( freq .NE. 0. ) THEN |
27 |
DIFFERENT_MULTIPLE = .TRUE. |
IF ( ABS(val1-val2) .GT. freq ) THEN |
28 |
RETURN |
DIFFERENT_MULTIPLE = .TRUE. |
29 |
ENDIF |
ELSE |
30 |
|
|
31 |
C o This case is more complex because of round-off error |
C o This case is more complex because of round-off error |
32 |
f = freq |
f = freq |
33 |
v1 = val1 |
v1 = val1 |
34 |
v2 = val2 |
v2 = val2 |
35 |
step = v1-v2 |
step = v1-v2 |
36 |
|
|
37 |
C Test v1 to see if its a "closest multiple" |
C Test v1 to see if its a "closest multiple" |
38 |
v3 = v1 + step |
v3 = v1 + step |
39 |
v4 = NINT(v1/f)*f |
v4 = NINT(v1/f)*f |
40 |
d1 = v1-v4 |
d1 = v1-v4 |
41 |
d2 = v2-v4 |
d2 = v2-v4 |
42 |
d3 = v3-v4 |
d3 = v3-v4 |
43 |
IF ( ABS(d1) .LE. ABS(d2) .AND. |
IF ( ABS(d1) .LE. ABS(d2) .AND. ABS(d1) .LE. ABS(d3) ) |
44 |
& ABS(d1) .LE. ABS(d3) ) DIFFERENT_MULTIPLE = .TRUE. |
& DIFFERENT_MULTIPLE = .TRUE. |
45 |
|
|
46 |
|
ENDIF ! |val1-val2| > freq |
47 |
|
ENDIF ! freq != 0 |
48 |
|
|
49 |
END |
END |